Air bag pressure equalizing device for space solar cell module

Abstract

The invention discloses an air bag pressure equalizing device for a space solar cell module. The air bag pressure equalizing device comprises an equipment housing, an electrical mounting plate, an elastic diaphragm and a pressure bearing plate which are arranged in sequence, the upper surface of the equipment housing is provided with a screen control integrated system, and the side surface is provided with a compressed air source interface; a gas proportional valve, an electromagnetic valve and a pressure sensor are arranged on the upper surface of the electrical mounting plate; pressing frames are arranged on the side faces of the elastic membranes, sealing strips are arranged on the upper surfaces of the pressing frames, screw holes are formed in the edges of the pressing frames, positioning bolts penetrate through the screw holes, and an air membrane cavity is formed by the electrical installation plate and the elastic membranes through the sealing strips; the edge of the bearing plate is provided with a gap adjusting stud and the positioning bolt, the gap adjusting stud is used for adjusting the gap between the bearing plate and the elastic diaphragm, and the bearing plate fixedly connects the equipment housing, the electrical mounting plate and the elastic diaphragm through the positioning bolt. The device can realize pressure linear adjustment according to different solar cell modules, and the pressure applying uniformity and the pasting flatness of the solar cell modules are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell preparation, and in particular to an airbag pressure equalizing device for a space solar cell assembly. Background Art

[0002] In the manufacturing process of existing space solar cell circuits, single solar cells are generally welded into solar cell modules, and the solar cell modules are pasted on the solar cell substrate. After the solar cell modules are formed and pasted on the solar cell substrate through the film glue, they are often pressed and solidified by placing a counterweight metal block on each solar cell. The pressurization process requires multiple people to operate, and the operation process is time-consuming. There is a high risk that the block will fall and damage the battery or substrate. The pressurization effect is limited by the flatness of the solar cell, the substrate plane and the block itself. The pressure required for the expansion of the glue type is not transmitted in place. In some areas, the contact between the battery and the film glue is point contact, and the glue type expansion is uneven. In addition, due to different task requirements, the pressure weight requirements of the solar cell module are different. The counterweight metal block is not universal, and the design of blocks of various sizes and specifications causes a huge waste of resources. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of uneven expansion of the glue mold, high operating risks and non-universality of the counterweight pressure block during the pressurization process of the existing solar cell modules, and to provide a pressure equalizing device that can achieve uniform transmission of pressure and uniform expansion of the glue mold.

[0004] In order to achieve the above object, the present invention provides a space solar cell assembly airbag pressure equalization device, which at least comprises:

[0005] The equipment cover, electrical installation plate, elastic diaphragm, and pressure plate are stacked in sequence from top to bottom;

[0006] The upper surface of the equipment cover is provided with a screen-control integrated system, and the side of the equipment cover is provided with a compressed air source interface;

[0007] The upper surface of the electrical installation board is provided with a gas proportional valve, a solenoid valve, and a pressure sensor;

[0008] The sides of the elastic diaphragm are provided with a clamping frame, the upper surface of the clamping frame is provided with a sealing strip, the edge of the clamping frame is also provided with a screw hole, the positioning bolt passes through the screw hole, and the electrical installation board and the elastic diaphragm are formed into an air film cavity through the sealing strip;

[0009] The edge of the pressure plate is provided with a plurality of gap adjustment studs and positioning bolts, the gap adjustment studs are used to adjust the gap between the pressure plate and the elastic diaphragm, and the pressure plate is fixedly connected to the equipment cover, the electrical installation plate and the elastic diaphragm through the positioning bolts.

[0010] Optionally, the integrated screen-control system is an integrated screen-control controller with an integrated touch screen, and the control software of the integrated screen-control controller at least includes a logic control module, a parameter management module, and a user interface module.

[0011] Optionally, the logic control module uses a PID algorithm to perform constant pressure control on the pressure inside the air film cavity, and the user interface module is used to set the pressure of the air film cavity.

[0012] Optionally, the analog output channel of the integrated screen-control controller outputs a control signal to control the gas proportional valve to adjust the pressure inside the air film cavity; the analog acquisition channel of the integrated screen-control controller acquires the pressure inside the air film cavity in real time, and feeds the pressure back to the integrated screen-control controller.

[0013] Optionally, a pipe is provided inside the elastic diaphragm, and the pipe is connected to the compressed air source interface. The compressor is connected to the compressed air source interface through an external compressor to inflate the elastic diaphragm, thereby forming the air film cavity, and the air film cavity can apply uniform pressure to the solar cell module.

[0014] Optionally, a vacuum generator is further provided on the upper surface of the electrical installation board, and the vacuum generator is controlled by the solenoid valve. Before applying pressure to the solar cell assembly, the elastic diaphragm is adsorbed on the electrical installation board by the negative pressure provided by the vacuum generator.

[0015] Optionally, the thickness of the compression frame is greater than the thickness of the elastic membrane.

[0016] Optionally, the elastic membrane has a thickness of 0.4 mm to 0.6 mm.

[0017] Optionally, the elastic diaphragm is made of silicone.

[0018] Optionally, the adjustment range of the gap adjustment stud is 10 mm to 30 mm.

[0019] Compared with the prior art, the beneficial effects of the present invention include at least:

[0020] (1) The elastic diaphragm of the present invention is provided with a clamping frame on the side, and a sealing strip with a certain elasticity is provided on the clamping frame. When an external compressor inflates the elastic diaphragm, the elastic diaphragm expands and lifts up, so that the sealing strip fits against the electrical installation board, thereby forming an air film cavity with adjustable internal pressure between the electrical installation board and the elastic diaphragm. When the space solar cell module is located directly below the air film cavity, uniform pressure can be applied to the space solar cell module. Furthermore, a height-adjustable gap adjustment stud is also provided on the pressure plate. When pressure needs to be applied to space solar cells of different heights, linear pressure adjustment can be achieved for different products by adjusting the height of the gap adjustment stud, thereby greatly reducing waste of resources.

[0021] (2) The airbag pressure equalizing device for the space solar cell module of the present invention effectively solves the defect of poor pressure effect of the counterweight block during the curing process of the solar cell module, that is, due to the limitation of the flatness of the solar cell, the substrate plane and the counterweight block itself, the pressure required for the expansion of the glue pattern is not transmitted in place, the contact between the battery and the film glue in some areas is point contact, the glue pattern is unevenly expanded, etc., thereby improving the pasting flatness of the space solar cell module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The exploded view of the airbag pressure equalizing device for a space solar cell module of the present invention.

[0023] Figure 2 The present invention is a schematic structural diagram of an airbag pressure equalizing device for a space solar cell module.

[0024] Figure identification: 1-equipment cover, 2-screen control integrated system, 3-compressed gas source interface, 4-gas proportional valve, 5-solenoid valve, 6-vacuum generator, 7-electrical installation board, 8-pressure sensor, 9-elastic diaphragm, 10-clamping frame, 11-clearance adjustment stud, 12-positioning bolt, 13-pressure plate. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1 , Figure 2As shown, the present invention provides a space solar cell assembly airbag pressure equalization device, the device comprises an equipment housing 1, an electrical installation board 7, an elastic diaphragm 9, and a pressure plate 13 stacked in sequence from top to bottom. Four positioning bolts 12 are arranged around the pressure plate, and screw holes are arranged on the equipment housing 1 and the electrical installation board 7, wherein the screw holes of the elastic diaphragm are arranged on the compression frame 10 on the side thereof, and the positioning bolts 12 pass through all the screw holes to fix the equipment housing 1, the electrical installation board 7, the elastic diaphragm 9, and the pressure plate into an integral device.

[0027] The upper surface of the device cover 1 is provided with a screen-control integrated system 2, and the side of the device cover 1 is provided with a compressed air source interface 3. The compressed air source interface 3 is connected to an external compressor to inflate the elastic diaphragm 9 so as to form an air film cavity between the elastic diaphragm 9 and the electrical installation board 7, and the air film cavity is used to uniformly pressurize the space solar cell assembly located below it. The screen-control integrated system 2 is a screen-control integrated controller with an integrated touch screen. The control software of the screen-control integrated controller at least includes a logic control module, a parameter management module, and a user interface module. The logic control module uses a PID algorithm to perform constant pressure control on the pressure inside the air film cavity, and the user interface module is used to set the pressure of the air film cavity. The analog output channel of the screen-control integrated controller outputs a control signal to control the gas proportional valve 4 on the electrical installation board 7 to adjust the pressure inside the air film cavity; the analog acquisition channel of the screen-control integrated controller acquires the pressure inside the air film cavity in real time through the solenoid valve 5 on the electrical installation board 7, and feeds the pressure back to the screen-control integrated controller.

[0028] The elastic diaphragm 9 is provided with a pipeline inside, and the pipeline is connected to the compressed air source interface 2. The external compressor is connected to the compressed air source interface 2, and then the elastic diaphragm 9 is inflated. The elastic diaphragm 9 is bulged after inflation. A circle of clamping frame 10 is provided on the side of the elastic diaphragm 9, and four screw holes are provided around the clamping frame 10. The positioning bolts 12 pass through the screw holes to connect the elastic diaphragm 9 with the electrical installation board 7. Furthermore, a sealing strip is provided at the part where the clamping frame 10 contacts the electrical installation board 7, and the sealing strip has a certain elasticity. The thickness of the clamping frame 10 is greater than the thickness of the elastic diaphragm 9. When the elastic diaphragm 9 bulges after inflation, the sealing strip contacts the electrical installation board 7, thereby forming an air film cavity. In some embodiments, the thickness of the elastic diaphragm 9 is 0.4mm to 0.6mm, and the material of the elastic diaphragm 9 is silicone material, which can withstand a pressure of 10Kpa without damage. The pressure sensor 8 on the electrical installation board 7 is used to detect and feedback the pressure inside the air film cavity.

[0029] The upper surface of the electrical installation board 7 is provided with a gas proportional valve 4, a solenoid valve 5, a pressure sensor 8, and a vacuum generator 6. The solenoid valve 5 is used to control the switch of the vacuum generator 6. When the elastic diaphragm 9 is not in an inflated state, the negative pressure provided by the vacuum generator 6 adsorbs the elastic diaphragm 9 on the electrical installation board 7.

[0030] In addition to the positioning bolts 12, the pressure plate 13 is also provided with six gap adjustment studs 11 around it. The six studs are symmetrically arranged on both sides of the pressure plate 13, so that gaps are left on the other two sides, which is convenient for placing the space solar cell module on the pressure plate 13 and below the air film cavity through the gap. The gap adjustment studs 11 can be used to adjust the height between the pressure plate 13 and the air film cavity to accommodate space solar cell modules of different heights, and then realize linear pressure adjustment according to different product requirements. In some embodiments, the adjustment range of the gap adjustment studs is 10mm to 30mm.

[0031] The method for applying pressure to a solar cell module using a space solar cell module airbag pressure equalizing device of the present invention comprises the following steps:

[0032] Step 1: Connect the external compressor to the compressed air source interface on the equipment cover, and set the pressurization time and pressurization parameters through the integrated screen control system.

[0033] Step 2: Transfer the solar cell assembly to be pressurized to the pressure plate and below the air film cavity through the gap at the edge of the pressure plate.

[0034] Step 3: Turn on the power of the external compressor, inflate the elastic diaphragm through the pipe inside the elastic diaphragm, so that a positive pressure environment is formed in the air film cavity, and start to pressurize the solar cell assembly to be pressurized located directly below it.

[0035] Step 4: After the pressure is applied, turn off the power of the external compressor and remove the solar cell module from the pressure plate.

[0036] In summary, the present invention provides a space solar cell module airbag pressure equalization device, which at least comprises: an equipment cover, an electrical installation board, an elastic diaphragm, and a pressure plate stacked in sequence from top to bottom; the upper surface of the equipment cover is provided with a screen control integrated system, and the side of the equipment cover is provided with a compressed gas source interface; the upper surface of the electrical installation board is provided with a gas proportional valve, a solenoid valve, and a pressure sensor; the sides of the elastic diaphragm are provided with a clamping frame, the upper surface of the clamping frame is provided with a sealing strip, and the edge of the clamping frame is also provided with a screw hole, the positioning bolt passes through the screw hole, and the electrical installation board and the elastic diaphragm are formed into an air film cavity through the sealing strip; the edge of the pressure plate is provided with a plurality of gap adjustment studs and the positioning bolts, the gap adjustment studs are used to adjust the gap between the pressure plate and the elastic diaphragm, and the pressure plate is fixedly connected to the equipment cover, the electrical installation board, and the elastic diaphragm through the positioning bolts. The device can uniformly apply pressure to different space solar cell modules, thereby realizing linear pressure regulation.

[0037] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A space solar cell module airbag pressure equalization device, characterized in that: At least: The equipment cover, electrical installation board, elastic diaphragm and pressure plate are stacked in sequence from top to bottom; the upper surface of the equipment cover is provided with a screen-control integrated system, and the side of the equipment cover is provided with a compressed air source interface; The upper surface of the electrical installation board is provided with a gas proportional valve, a solenoid valve, and a pressure sensor; The sides of the elastic diaphragm are provided with a clamping frame, the upper surface of the clamping frame is provided with a sealing strip, the edge of the clamping frame is also provided with a screw hole, the positioning bolt passes through the screw hole, and the electrical installation board and the elastic diaphragm are formed into an air film cavity through the sealing strip; The edge of the pressure plate is provided with a plurality of gap adjustment studs and positioning bolts, the gap adjustment studs are used to adjust the gap between the pressure plate and the elastic diaphragm, and the pressure plate is fixedly connected to the equipment cover, the electrical installation plate and the elastic diaphragm through the positioning bolts.

2. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: The integrated screen-control system is an integrated screen-control controller with an integrated touch screen, and the control software of the integrated screen-control controller at least includes a logic control module, a parameter management module, and a user interface module.

3. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 2, characterized in that: The logic control module uses a PID algorithm to perform constant pressure control on the pressure inside the air film cavity, and the user interface module is used to set the pressure of the air film cavity.

4. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 2, characterized in that: The analog output channel of the integrated screen-control controller outputs a control signal to control the gas proportional valve to adjust the pressure inside the air film cavity; the analog acquisition channel of the integrated screen-control controller acquires the pressure inside the air film cavity in real time and feeds the pressure back to the integrated screen-control controller.

5. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: A pipeline is provided inside the elastic diaphragm, and the pipeline is connected to the compressed air source interface. The compressor is connected to the compressed air source interface through an external compressor to inflate the elastic diaphragm, thereby forming the air film cavity, which can apply uniform pressure to the solar cell module.

6. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: A vacuum generator is also provided on the upper surface of the electrical installation board. The vacuum generator is controlled by the solenoid valve. Before applying pressure to the solar cell assembly, the elastic diaphragm is adsorbed on the electrical installation board by the negative pressure provided by the vacuum generator.

7. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: The thickness of the pressing frame is greater than the thickness of the elastic membrane.

8. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: The thickness of the elastic membrane is 0.4 mm to 0.6 mm.

9. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: The elastic membrane is made of silicone.

10. The airbag pressure equalizing device for a space solar cell assembly as claimed in claim 1, characterized in that: The adjustment range of the gap adjustment stud is 10 mm to 30 mm.

Images